Sanitary cover for telephone-mouthpieces.



E E CLAUSSEN. SMITARY COVER FOR TELEPHONE MOUTHPIECES.

APPLICATION FILED OCT- 27, I914.

Patented. Jan, 18, 1916.

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EDWARD E. CLAUSSEN, 0F HARTFORD,

CONNECTICUT.

SANITARY COVER FOR TELEPHONE-MOUTHPIECES.

Specification of Letters'Patent.

Patented Jan. 18, little.

Application filed October 27, 1914. Serial No. 868,830.

To all whom it may concern:

Be it known that I, EDWARD E. CLAUssEN, a citizen of the United States, residing at Hartford, in the county of Hartford and State of Connecticut, have invented certain new and useful Improvements in Sanitary Covers for Telephone-Mouthpieces, of which the following is a specification.

This invention relates to sanitary covers for telephone mouth-pieces, the object of the invention being to provide an article of this character which is simple in construction, susceptible of easy and inexpensive manufacture, capable of ready and quick application to or removal from position and which when in active relation will be held against accidental displacement.

In the drawings accompanying and forming part of the present specification I have shown in detail one of the several convenient forms of embodiment of the invention, which to enable those skilled in the art to practice the same will be set forth fully in the following description. I do not restrict myself to this particular disclosure; I may depart therefrom in several respects within the scope of the invention.

In said drawings I also represent one of the many different ways of making the article.

Referring to said drawings: Figure 1 is a top plan view of a blank. Fig. 2 is an elevation of the blank drawn into cup form but not compresmd. Fig. 3 is a perspective view of the finished article. Fig. 4 is an elevation of part of a telephone mouth-piece with the finished article applied thereto. Fig. 5 is a top plan view of two die members, one inclosed by the other. Fig. 6 is a sectional view of several die members showing how the article may be formed. Fig. 7 is a view with the upper die member of Fig. 6 omitted and a guide and a compressing member substituted therefor. 7

Like characters refer to like parts throughout the several views.

My cover is referably made from sheet material, and have found paper as eminently satisfactory for this purpose. en I employ paper as I prefer to do, the same may be of any quality or grade; as heavy in fact as cardboard, the weight not concerning the invention, although it should be sufficiently thin ordinarily as to facilitate its being bent as may be required in the process of forming the article from the blank to finished condition. In Fig. 1 I have shown a blank as 2 such as meets my requirements,

. said blank consisting. of adisk or-circular piece of proper material. Approximately centrally this blank may have a number of perforations 3 to facilitate the transference through the transmitter '4: of sounds which may be telephonically transmitted. In all cases these perforations may not be necessary. The exposed face of the blank may as shown bear upon its face advertising matter or anything else that may be desired. There may be cases where I should not prefer to form perforations in the blank, but, where perforations are resent, they can be made at the same time, t 1e blank, by the aid of suitable dies, is being cut from the stock.

The finished article shown in Figs. 3 and t comprises a circular body as 5 which is inwardly dished or bulged as at 6, the inwardly-bulged portion 6 fitting within and frictionally engaging the wall of the customary tapered opening of the telephone mouthpiece 4. There may be instances where this frictional engagement between the periphery of the bulge 6 and the wall of the transmitter opening will hold the cover in position, but I prefer to not rely upon this but to provide a more positive means for securing the cover in place, the annular inturned flange 7 integral as shown with the circular body 5 answering efficiently in this regard, the

flange being preferably expansible and contractible, so that it yieldingly grips the outer portion of the transmitter i exteriorly thereof. This resilience or yieldability of the holding flange 7, which is shown as continumay he obtained in any desirable manalthough I have secured excellent results by fiuting, creasing or plaiting said in turned securing or holding flange 7, the plaits extending depthwise of the flange. I find that by so making this flange it will provide a very satisfactory means for holding the cover in place, and it possesses under ordinary cases the requisite strength. For additional security, however, I prefer to strengthen this flange, by densifying or compacting the same, this result being conveniently brought about by mashing down the flange, so that when thus operated upon it will be materially strengthened or reinous, ner,

forced without sacrifice of any of the yieldability circumfercntially to which I have the blank 2 the function of inforced by the mashing down thereof in the manner alluded to, but the mashing action produces within the flange a corrugated surface or a surface having a multiplicity of protrusions or as it might be otherwise stated, the flange is interiorly roughened so that it can obtain a firm hold on the exterior of the telephone mouth piece.

I have described one typeof blank from produced, the topsof these teeth being on upward, outward inclinations. Complemental to this die member 8 is a second and annular die member 11, the internal and ex ternal diameters of the-two being similar,

the die member 11 having on its lower edge radial teeth 12 adapted to be projected into .the tooth spaces or slots'9. In the construction shown the external diameter of the two die members 8 and 11 is practically the same as that'of the blank 2. Fitted Within the tubular die member 8 is a core 19' having on its upper side the protuberance or boss 13. The purpose of the toothed portion of the die members 8 and 11 is to the boss or protuherance 13 being to inwardly dish the blank as at 6. I

V In forming the article the following procedure may be adopted: The blank 2 will be laid upon the die member 8 with the periphcries of the two coincident, after which the die member 11 will be brought over the die member 8 and said die members 11 and 8 will be relatively operated to ca se the teeth 12 to project the marginal portion of the.

blank 2 slightly into the toothed I spaces. The cylindrical plunger 14 will then be introduced into the annular die member 11 and projected downward,thereby downsetting the ing or fluting the downset or flanged portion of the blank as shown in Fig. 2 which view represents the blank after the flange 7 has been formed and plaited, the maximum plait marginally flange 7 and at the same time creasmeans; 7

member 14 after the blank has been flanged, This sleeve plaited and bulged as set forth. 16 can be lowered against the brim or rim of the flange 7 and on being further advanced willact to mash. down said flange and densify and reinforce it in the manner mentioned.

It will be noted that the bulge 6 is situated between the inner and outer edges of the circular retaining flange 7 the body '5 between the bulge andthe flange being flat. The external portion of the, bulge is upon a taper to adapt Ili'tO obtain a more secure hold within the mouth piece 4. The flange 7 is of but a single thickness, so that I obtain the maximum gripping efl'ect of the flutes or creases thereoi'.

' What I claim is:

-1. A sanitary one-piece .cover of paper for telephone mouth pieces comprising a circular inwardly bulged body, the externalportion of-the bulge being upon-a taper and being adapted to engage the inner surface of the telephone mouth piece, said body havmg an inturned circular plaited flange be-,

tween the inner and outer sidesofwhich the bulge is 'situated, said flange being adapted to engage the exterior of the mouth piece and the flange and the tapered portion of the bulge acting jointly to prevent accidental withdrawal of the cover from the EDWARD E. OLAUSSEN.

Witnesses:

L. L. MARKEL, HEATH SUTHERLAND. 

